Results 1-12 of 12
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[ABSTRACT] I present a brief review on space and time in different periods of physics, and then talk on the nature of space and time from physical arguments. ...
[KEYWORDS] Space; time; Lorentz violation; INVARIANCE VIOLATION; GENERAL PRINCIPLE; LENGTH SCALE; RELATIVITY; FIELD
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Zhou, Lingli; Ma, Bo-Qiang
astroparticle physics
2012
[ABSTRACT] The light speed anisotropy, i.e., the variation of the light speed with respect to the direction in an "absolute" reference frame, is a p...
[KEYWORDS] Lorentz invariance violation; Light speed anisotropy; GRAAL experiment; BEAM LASER SPECTROSCOPY; LORENTZ VIOLATION; BACKGROUND-RADIATION; GENERAL PRINCIPLE; ISOTROPY; RELATIVITY; INVARIANCE; TESTS
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Zhou, Lingli; Ma, Bo-Qiang
astroparticle physics
2013
[ABSTRACT] We make a reanalysis on the issue of neutrino speed anomaly by taking into account the newly reported data from the ICARUS experiment and other CNG...
[KEYWORDS] Neutrino speed; Light speed; Lorentz violation; Physical invariance; GENERAL PRINCIPLE; SN1987A
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Zhang, Shu; Ma, Bo-Qiang
astroparticle physics
2015
[ABSTRACT] The constancy of light speed is a basic assumption in Einstein's special relativity, and consequently the Lorentz invariance is a fundamental ...
[KEYWORDS] Speed of light; Lorentz invariance violation; High energy photon; Gamma-ray burst; QUANTUM-GRAVITY; TELESCOPE; AFTERGLOW; CONSTANT; PHOTONS
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Zhang, Xinyu; Shao, Lijing; Ma, Bo-Qiang
astroparticle physics
2011
[ABSTRACT] Doubly special relativity (DSR), with both an invariant velocity and an invariant length scale, elegantly preserves the principle of relativity bet...
[KEYWORDS] Doubly special relativity; Photon gas; Thermodynamics; GAMMA-RAY BURSTS; LORENTZ VIOLATION; DISPERSION-RELATIONS; QUANTUM-GRAVITY
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Ma, Bo-Qiang
modern physics letters a
2012
[ABSTRACT] This is a brief review on the experimental measurements muon neutrino velocities from the OPERA, Permilab and MINOS experiments and that of the (an...
[KEYWORDS] Neutrino; superluminal; non-standard model; LORENTZ INVARIANCE VIOLATION; GENERAL PRINCIPLE; MUON VELOCITIES; LENGTH SCALE; RELATIVITY; SYMMETRY; BREAKING; PHOTONS; SN1987A; FIELD
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Niu, Yuezhen; Huang, Junwu; Ma, Bo-Qiang
physical review d
2011
[ABSTRACT] We study the self-gravitational effect on the equation of state (EoS) of Bose and Fermi gases in thermal equilibrium at the end of reheating, the p...
[KEYWORDS] EQUATION-OF-STATE; BLACK-HOLES; STARS; COSMOLOGY; SYSTEMS; BOSONS
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Xu, Yunqi; Ma, Bo-Qiang
modern physics letters a
2011
[ABSTRACT] Starting from the universal entropy bounds suggested by Bekenstein and Susskind and applying them to the black-body radiation situation, we get a c...
[KEYWORDS] Entropy bound; discrete spacetime; minimum length scale; minimum time interval; BLACK-HOLES; LORENTZ VIOLATION; RELATIVITY; QUANTUM; LENGTH
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Xu, Haowei; Ma, Bo-Qiang
PHYSICS LETTERS B
2016
[ABSTRACT] It is postulated in Einstein's relativity that the speed of light in vacuum is a constant for all observers. However, the effect of quantum gr...
[KEYWORDS] Light speed; Gamma ray burst; High energy photon; Lorentz invariance violation; QUANTUM-GRAVITY; LORENTZ VIOLATION
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Xu, Haowei; Ma, Bo-Qiang
ASTROPARTICLE PHYSICS
2016
[ABSTRACT] The effect of quantum gravity can bring a tiny light speed variation which is detectable through energetic photons propagating from gamma ray burst...
[KEYWORDS] Light speed; Gamma ray burst; Lorentz invariance violation; QUANTUM-GRAVITY; GRB; VIOLATION; AFTERGLOW
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Xu, Haowei; Ma, Bo-Qiang
JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS
2018
[ABSTRACT] The effect of Quantum Gravity (QG) may bring a tiny light speed variation as v(E) = c(1 - E/E-LV), where E is the photon energy and E-LV is a Loren...
[KEYWORDS] gamma ray bursts theory; quantum gravity phenomenology; LIGHT SPEED VARIATION; QUANTUM-GRAVITY; LORENTZ VIOLATION; DISPERSION; TELESCOPE
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Liu, Yue; Ma, Bo-Qiang
EUROPEAN PHYSICAL JOURNAL C
2018
[ABSTRACT] We examine a method to detect the light speed variation from gamma ray burst data observed by the Fermi Gamma-ray Space Telescope (FGST). We sugges...
[KEYWORDS] QUANTUM-GRAVITY; LORENTZ VIOLATION
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